¥ 价格面议
¥ 价格面议
¥ 8547.00
¥ 8547.00
¥ 8852.00
易卖工控网(www.ymgk.com)提供”SE95271171 DSDI120A 国外一手货源”,产品详情:品牌/厂家:DCSPLC、型号:SE95271171DSDI120A、成色:全新、货期:现货 1天内发货、保修:180天,更多产品详情就上易卖工控网。
人们才关注这个标准。在有关杂志上有专文介绍该标准的制订背景、重要性、标准的主要内容。中国机电一体化技术应用协会组织翻译了两名德国作者Karl-Heinz John和Miachael Tiegelkamp写的专著:"IEC 61131-3:工业自动化系统的程序编制"。现已由该协会内部发行。近,中国机电一体化技术应用协会(CAMETA)与以开发基于IEC 61131-3的编程系统称著的德国KW公司远东总经理Robert Champoud先生合作,组织协调有关IEC 61131项目的研讨会活动,得到Siemens、Phoenix、富士电机的大力支持。这对于促进它的推广,有着深远的意义。
软PLC在中国
所谓软PLC实际就是在PC机的平台上、在Windows操作环境下,用软件来实现PLC的功能。此概念大约在1996年以后才被介绍到国内来。由于这种技术尚不成熟,所以只有在学术界少数人对此关注。尽管Interllution和Wonderware的HMI和SCADA软件在我国推广都很成功,但它们的软逻辑、软PLC产品P-31和InControl却少有人问津。当然,这两家公司也不曾刻意去开发这个市场。
Think&Do和Steeperchase的VLC都是1998、1999年进入中国市场的,特别是Think&Do花了很大的努力,至今仍不尽如人意。当然有一些成功应用,如邮件分拣系统。我感觉,这多少与它们不采用IEC 61131-3,而是倡导用流程图编程语言不无关系。
德国KW公司在1998年以后就在北京设立办事处,着力推广其符合IEC 61131-3的编程系统MULTIPROG和控制程序ProConOS。
Siemens从2001年开始在国内推介其软PLC系列产品WinAC,已经有了一些应用。他们是很有战略眼光的。德国Inforteam公司的openPCS在国内也开始了市场开拓活动,2002年6月曾在上海的自动化展览会上举办过技术交流。
我国自行开发的DCS系统,如上海自仪公司的SUPMAX-800,选用法国CJ International公司的符合IEC 61131-3的IsaGraf和美国的强实时操作系统Vxworks。北京的和理时已采用Inforteam的OpebPCS开发新的DCS。
分析全世界控制设备的发展情况
从全世界范围看,软PLC/PC控制作为新兴产业正在发展。面对这种挑战,PLC仍在发展。
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